MongoDB java - update into null array

Asked Sep 12 '17 at 16:26

Active Sep 12 '17 at 17:31

Viewed 451 times

I'm adding elements into an array("users") by using the $addToSet, but sometimes the array is null. Already tried to check if is null, and if it is use the $push, but I'm getting a The field 'users' must be an array but is of type null in document. Any ideas? This is the code I'm using:

    if(!userIsAssociated(campaign,user)){
    collection.updateOne(
            Filters.eq("_id", new ObjectId(id)),
            Updates.push("users", user));
    }

edited Sep 12 '17 at 17:31

asked Sep 12 '17 at 16:26

Poider12

Can you provide code for `users` array? – Jayveer Parmar Sep 12 '17 at 16:32
It's an array of strings. The problem is when user: null – Poider12 Sep 12 '17 at 16:56
correction: users:null – Poider12 Sep 12 '17 at 17:03
2

This will help. https://stackoverflow.com/questions/31770550/push-object-into-array-if-the-array-exists-otherwise-create-the-array-with-objec – s7vr Sep 12 '17 at 17:37

MongoDB java - update into null array

0 Answers0